Available on the App Store.
See also my moon map apps here.
If you have questions, comments etc. please
Instructions
Select a constellation, a Messier object or a double star from the list or select a chart from an index map. You can scroll around the chart and mirror or rotate it. You can zoom in and out by pinching. Zoom range: 0.5x–3.0x. You can also zoom in by double-tap and zoom out by two-finger tap
About the charts
The sky is divided into 18 charts. One chart covers about 4h x 50° (polar areas: 8h x 40°). Charts contain over 25 000 stars to magnitude 7.5 and all 110 Messier objects. Projection is equidistant azimuthal projection.
Stars have Bayer designation (Greek letters) or Flamsteed numbers to magnitude 6.0, except some crowded places.
Next version (1.2) should be ready in December. It will have more deep sky objects.
What's new in version 1.1:
What was new in version 1.0.1:
Demo movie version 1.1 (Quicktime mp4)